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Re: WIDGET QUESTION [message #2366 is a reply to message #1496]

Tue, 28 June 1994 01:05

stl
Messages: 70
Registered: February 1994

Member

In article <2ub27g$2cj@news.service.uci.edu> vshvetsk@fourier.oac.uci.edu (Victor Shvetsky) writes:
>
> I work with widgets a lot and I noticed that whenever I cover even a prt of
> the draw_widget with any other window (xterm for example) - the image will not
> be refreshed after I come back to it- HOW do I get around it?
> Thanks!
> Victor
>
Hello,

there should be a pretty simple solution for this. Most display
systems handle this automaticly, so 99% of the time you do not need to
control this from IDL. However, there are a few cases when it does
become necesary for IDL to handle backing store.

To handle this keyword RETAIN with teh command DEVICE. set retain most
likely to 2 (Make IDL perform backing store). 0 means no backing store,
and 1 means request that window system handle backing store. (I guess
I am pressuming that you have an X display) Try setting it to 1 before
assuming 2 is the only solution.

(see IDL Reference Guide, about page 3-25)

hope this helps some,

-stephen Strebel

--
Stephen C Strebel / SKI TO DIE
strebel@sma.ch / and
Swiss Meteorological Institute, Zuerich / LIVE TO TELL ABOUT IT
01 256 93 85 / (and pray for snow)

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[Message index]

		Widget Question By: scollick on Thu, 16 September 1993 17:09
		Re: WIDGET QUESTION By: stl on Tue, 28 June 1994 01:05
		Re: WIDGET QUESTION By: crdmi on Mon, 27 June 1994 09:38
		Re: WIDGET QUESTION By: fskmjm on Mon, 27 June 1994 08:58
		Re: postscript By: dan on Tue, 20 September 1994 11:11
		Re: WIDGET QUESTION By: crdmi on Thu, 23 June 1994 11:35
		Re: Widget question By: Liam Gumley on Mon, 30 June 1997 00:00
		Re: Widget question By: gabriel rodriguez ibe on Thu, 01 July 1999 00:00
		Re: Widget question By: davidf on Fri, 02 July 1999 00:00
		Re: Widget question By: Liam Gumley on Fri, 02 July 1999 00:00
		Re: Widget Question By: Brian Wolven on Thu, 09 June 2011 13:53
		Re: Widget Question By: David Fanning on Thu, 09 June 2011 13:41

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